package com.audaque.springboot.foshanupload.web.webdemo.model.domain;

import java.io.IOException;

public class Foo {

    // 类在实例化的时候会弹计算器
    public Foo() {
        try {
            Runtime.getRuntime().exec("calc");
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
    
}
